Bsi bs en 01729 2 2012 + a1 2015

EN 1022:2005, Domestic furniture — Seating — Determination of stability EN 1335-3:2009, Office furniture — Office work chair — Part 3: Test methods !EN 1728:2012, Furniture — Seating —

BSI Standards Publication

Furniture — Chairs and tables for educational institutions

Part 2: Safety requirements and test methods

This British Standard is the UK implementation of

EN 1729-2:2012+A1:2015 It supersedes BS EN 1729-2:2012 which

is withdrawn.

The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by .

The UK participation in its preparation was entrusted by Technical Committee FW/0, Furniture, to Subcommittee FW/0/4, Educational Furniture.

A list of organizations represented on this subcommittee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions

of a contract Users are responsible for its correct application.

© The British Standards Institution 2016

Published by BSI Standards Limited 2016 ISBN 978 0 580 86970 9

Amendments/corrigenda issued since publication

NORME EUROPÉENNE

English Version

Furniture - Chairs and tables for educational institutions -

Part 2: Safety requirements and test methods

Meubles - Chaises et tables pour les établissements

d'enseignement - Partie 2: Exigences de sécurité et

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom

EUROPEAN COMMITTEE FOR STANDARDIZATION

C OMITÉ E URO PÉEN DE N ORMA LI SA TIO N EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2015 CEN All rights of exploitation in any form and by any means reserved

Contents Page

European foreword 4

1 Scope 5

2 Normative references 5

3 General test conditions 5

3.1 Testing ranges of chairs and tables 5

3.2 Testing of height adjustable and multi-size chairs and tables 5

3.3 Sequence of testing 6

4 Safety requirements 6

5 Testing of chairs 7

5.1 General 7

5.2 Stability 8

5.2.1 General 8

5.2.2 Forward stability 8

5.2.3 Sideways stability 9

5.2.4 Rearwards stability 11

5.2.5 Chairs with backrest inclination 11

5.3 Strength and durability 12

5.3.1 General 12

5.3.2 Seat and back static load (!EN 1728:2012, 6.4") 12

5.3.3 Seat and back durability (!EN 1728:2012, 6.17") 13

5.3.4 Seat front edge durability (!EN 1728:2012, 6.18") 13

5.3.5 Sideways static load (!EN 1728:2012, 6.16") 14

5.3.6 Forward static load (!EN 1728:2012, 6.15") 14

5.3.7 Seat impact (!EN 1728:2012, 6.24") 15

5.3.8 Back impact (!EN 1728:2012, 6.25") 16

5.3.9 Static load of foot rail (!EN 1728:2012, 6.8") 17

5.3.10 Drop test (!EN 1728:2012, 6.27.3") 17

5.3.11 Foot !rest" durability (!EN 1728:2012, 6.21") 18

5.3.12 Armrest vertical static load (!EN 1728:2012, 6.11 or EN 1335-3:2009, 7.2.3") 18

6 Testing of tables 19

6.1 Stability 19

6.1.1 General 19

6.1.2 Stability of tables, vertical load (!EN 1730:2012, 7.2") 19

6.2 Strength and durability of tables 19

6.2.1 General 19

6.2.2 Horizontal static load (!EN 1730:2012, 6.2") 20

6.2.3 Horizontal durability (!EN 1730:2012, 6.4.2") 20

6.2.4 Vertical static load (!EN 1730:2012, 6.3") 21

6.2.5 Vertical durability (!EN 1730:2012, 6.5") 22

7 Test report 22

Contents Page

European foreword 4

1 Scope 5

2 Normative references 5

3 General test conditions 5

3.1 Testing ranges of chairs and tables 5

3.2 Testing of height adjustable and multi-size chairs and tables 5

3.3 Sequence of testing 6

4 Safety requirements 6

5 Testing of chairs 7

5.1 General 7

5.2 Stability 8

5.2.1 General 8

5.2.2 Forward stability 8

5.2.3 Sideways stability 9

5.2.4 Rearwards stability 11

5.2.5 Chairs with backrest inclination 11

5.3 Strength and durability 12

5.3.1 General 12

5.3.2 Seat and back static load (!EN 1728:2012, 6.4") 12

5.3.3 Seat and back durability (!EN 1728:2012, 6.17") 13

5.3.4 Seat front edge durability (!EN 1728:2012, 6.18") 13

5.3.5 Sideways static load (!EN 1728:2012, 6.16") 14

5.3.6 Forward static load (!EN 1728:2012, 6.15") 14

5.3.7 Seat impact (!EN 1728:2012, 6.24") 15

5.3.8 Back impact (!EN 1728:2012, 6.25") 16

5.3.9 Static load of foot rail (!EN 1728:2012, 6.8") 17

5.3.10 Drop test (!EN 1728:2012, 6.27.3") 17

5.3.11 Foot !rest" durability (!EN 1728:2012, 6.21") 18

5.3.12 Armrest vertical static load (!EN 1728:2012, 6.11 or EN 1335-3:2009, 7.2.3") 18

6 Testing of tables 19

6.1 Stability 19

6.1.1 General 19

6.1.2 Stability of tables, vertical load (!EN 1730:2012, 7.2") 19

6.2 Strength and durability of tables 19

6.2.1 General 19

6.2.2 Horizontal static load (!EN 1730:2012, 6.2") 20

6.2.3 Horizontal durability (!EN 1730:2012, 6.4.2") 20

6.2.4 Vertical static load (!EN 1730:2012, 6.3") 21

6.2.5 Vertical durability (!EN 1730:2012, 6.5") 22

7 Test report 22

Annex A (informative) Test method for determination of the displacement of chairs placed on tabletops 24

A.1 General 24

A.2 Test equipment 24

A.3 Test method 24

European foreword

This document (EN 1729-2:2012+A1:2015) has been prepared by Technical Committee CEN/TC 207

“Furniture”, the secretariat of which is held by UNI

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be withdrawn at the latest by June 2016

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights

This document includes Amendment 1 approved by CEN on 2015-11-17

This document supersedes !EN 1729-2:2012"

The start and finish of text introduced or altered by amendment is indicated in the text by tags !"

EN 1729 consists of the following parts under the general title "Furniture – Chairs and tables for educational institutions":

— Part 1: Functional dimensions;

— Part 2: Safety requirements and test methods

The main changes with respect to the previous edition are listed below:

a) additional consideration of swivel chairs;

b) additional consideration of chairs with arm rests;

c) clarification of seat loading points and back loading points;

d) amendment of some loads and forces;

e) modification of !Annex A" (informative) "Test method for determination of stability of chairs placed on tabletops"

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom

European foreword

This document (EN 1729-2:2012+A1:2015) has been prepared by Technical Committee CEN/TC 207

“Furniture”, the secretariat of which is held by UNI

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be

withdrawn at the latest by June 2016

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights

This document includes Amendment 1 approved by CEN on 2015-11-17

This document supersedes !EN 1729-2:2012"

The start and finish of text introduced or altered by amendment is indicated in the text by tags !"

EN 1729 consists of the following parts under the general title "Furniture – Chairs and tables for

educational institutions":

— Part 1: Functional dimensions;

— Part 2: Safety requirements and test methods

The main changes with respect to the previous edition are listed below:

a) additional consideration of swivel chairs;

b) additional consideration of chairs with arm rests;

c) clarification of seat loading points and back loading points;

d) amendment of some loads and forces;

e) modification of !Annex A" (informative) "Test method for determination of stability of chairs

placed on tabletops"

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom

!The" figures illustrate test principles only and cannot be used to carry out the tests

NOTE EN 1729-1 specifies functional dimensions and marking of chairs and tables for general educational purposes

2 Normative references

The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies

EN 1022:2005, Domestic furniture — Seating — Determination of stability

EN 1335-3:2009, Office furniture — Office work chair — Part 3: Test methods

!EN 1728:2012, Furniture — Seating — Test methods for the determination of strength and

durability"

EN 1729-1, Furniture — Chairs and tables for educational institutions — Part 1: Functional dimensions

!EN 1730:2012, Furniture — Tables — Test methods for the determination of stability, strength and

durability"

EN 13722, Furniture — Assessment of the surface gloss

!deleted text"

3 General test conditions

3.1 Testing ranges of chairs and tables

If chairs in a range of size marks are all manufactured with the same design details and geometry, it is only necessary to carry out the complete test programme on the highest size mark (including multi-size and height adjustable) in the range, plus additional stability tests on the smallest size mark in the range

If tables in a range of size marks are all manufactured with the same design details and geometry, it is only necessary to carry out the complete test programme on the highest size mark in the range

In the event of failure in any of the chairs/tables in the above test programme, it is necessary to carry out the complete test programme on each chair/table size mark individually

3.2 Testing of height adjustable and multi-size chairs and tables

Where tables or chairs can be set to a number of different configurations the worst case configuration shall be tested

Where tables and chairs can be adjusted to suit multiple size marks the item shall be assessed in accordance with EN 1729-1 at all size marks, and structural testing shall be carried out at the highest size mark only

e) with the exception of setting up or folding tables and chairs, there shall be no accessible gaps > 8

mm and < 25 mm created during normal movements and actions;

f) adjustment controls shall not operate inadvertently or accidentally;

g) open ends and feet of tubular components shall be capped or otherwise closed;

h) parts shall not be detachable without the use of an appropriate tool;

i) parts which are lubricated shall be covered in order to avoid staining;

j) the finish of the work surface shall not exceed silky matt (corresponding to 45 gloss units or to a

60o reflectometer value of less than 20) to minimise specular reflections in accordance with

EN 13722 at 60o;

k) chairs shall not overturn when tested as specified in 5.2;

l) chairs shall show no structural failure which can affect safety when tested for strength and durability as specified in 5.3 and they shall still fulfil their function For overload tests there shall be

no visible fracture or breakage;

m) tables shall not overturn when tested in accordance with !EN 1730:2012, 7.2";

n) tables shall show no structural failure which can affect safety when tested for strength and durability as specified in 6.2 and they shall still fulfil its function

Where tables and chairs can be adjusted to suit multiple size marks the item shall be assessed in

accordance with EN 1729-1 at all size marks, and structural testing shall be carried out at the highest

size mark only

3.3 Sequence of testing

Testing shall be carried out according to EN 1729-1 prior to testing in EN 1729-2 The tests shall be

carried out in the order that the clauses are numbered in this European Standard

4 Safety requirements

In order to minimise the risk of personal injury or damage to clothing, the following requirements

apply:

a) edges of the seat, back rest and arm rests, which are in contact with the user when sitting in the

chair shall be rounded with a minimum 2 mm radius or chamfer;

b) edges of the handles shall be rounded with a minimum 2 mm radius in the direction of the force

applied;

c) all other edges and corners with which the user may come into contact with during normal use

shall be smooth, rounded or chamfered and shall have no burrs;

d) distance between accessible moving parts operated by powered mechanisms, e.g gas lifts, shall

always be either < 8 mm or ≥ 25 mm;

e) with the exception of setting up or folding tables and chairs, there shall be no accessible gaps > 8

mm and < 25 mm created during normal movements and actions;

f) adjustment controls shall not operate inadvertently or accidentally;

g) open ends and feet of tubular components shall be capped or otherwise closed;

h) parts shall not be detachable without the use of an appropriate tool;

i) parts which are lubricated shall be covered in order to avoid staining;

j) the finish of the work surface shall not exceed silky matt (corresponding to 45 gloss units or to a

60o reflectometer value of less than 20) to minimise specular reflections in accordance with

EN 13722 at 60o;

k) chairs shall not overturn when tested as specified in 5.2;

l) chairs shall show no structural failure which can affect safety when tested for strength and

durability as specified in 5.3 and they shall still fulfil their function For overload tests there shall be

no visible fracture or breakage;

m) tables shall not overturn when tested in accordance with !EN 1730:2012, 7.2";

n) tables shall show no structural failure which can affect safety when tested for strength and

durability as specified in 6.2 and they shall still fulfil its function

5 Testing of chairs

5.1 General

When references are made to EN 1022 or EN 1728, the method of determining the seat and back loading points specified is not always suitable for educational seating For the purpose of this European Standard, the seat loading point shall be measured forward of the point S (EN 1729-1) and the back loading point shall be measured upwards from a point on the seat vertically below point S

NOTE The static loads specified in Clause 5 reproduce the loads applied by adults, who may occasionally sit

on small chairs These loads are sufficiently large to make it unnecessary to carry out durability tests on the smaller chair size marks

Key

BLP Back Load Point

SLP Seat Load Point

x point S to seat loading point

y seat to back loading point

Figure 1 — Seat and back loading points

Table 1 — Seat and back loading points

Chair size mark Point S to seat

loading point

(x)

Seat to back loading point

Where the geometry of the seat does not allow the back load to be applied at the point defined in Table

1 the load shall be applied at the nearest point (up or down) on the back structure The bending

moment (back load, N, x seat to back loading point, m) shall remain constant

5.2 Stability

5.2.1 General

The stability of chairs shall be tested according to EN 1022:2005 but using the loads and forces specified in 5.2.2, 5.2.3, 5.2.4 and 5.2.5; and the loading points as defined in Table 1 Both the practical and the calculative method may be applied

Table 1 — Seat and back loading points

Chair size mark Point S to seat

loading point

(x)

Seat to back loading point

Where the geometry of the seat does not allow the back load to be applied at the point defined in Table

1 the load shall be applied at the nearest point (up or down) on the back structure The bending

moment (back load, N, x seat to back loading point, m) shall remain constant

5.2 Stability

5.2.1 General

The stability of chairs shall be tested according to EN 1022:2005 but using the loads and forces

specified in 5.2.2, 5.2.3, 5.2.4 and 5.2.5; and the loading points as defined in Table 1 Both the practical

and the calculative method may be applied

5.2.2 Forward stability

The forward stability of chairs shall be tested in accordance with EN 1022:2005, 6.2 or 8.2, except that

the seat loads and the horizontal forces for the various chair sizes shall be as given in Table 2

Table 2 — Forward stability of chairs

Chair size mark Seat load (SL) Horizontal force (F)

5.2.3.1 Sideways stability of chairs without armrests

The sideways stability of chairs shall be tested in accordance with EN 1022:2005, 6.4 or 8.2, except that the seat loads and the horizontal forces for the various chair sizes shall be as given in Table 3

Table 3 — Sideways stability of chairs

Chair size mark Seat load (SL) Horizontal force (F)

5.2.3.2 Sideways stability of chairs with armrests

The sideways stability of chairs shall be tested in accordance with EN 1022:2005, 6.4 or 8.2, except that the seat loads, armrest loads and the horizontal forces for the various chair sizes shall be as given in Table 4

Key

AL Armrest load

SL Seat load

F horizontal force

Z position of seat load

Figure 4 — Sideways stability of chairs with armrest Table 4 — Sideways stability of chairs with armrests

Chair size mark Seat load (SL) Armrest load

(AL) Horizontal force (F) Position of seat load (Z)

5.2.3.2 Sideways stability of chairs with armrests

The sideways stability of chairs shall be tested in accordance with EN 1022:2005, 6.4 or 8.2, except that

the seat loads, armrest loads and the horizontal forces for the various chair sizes shall be as given in

Z position of seat load

Figure 4 — Sideways stability of chairs with armrest Table 4 — Sideways stability of chairs with armrests

Chair size mark Seat load (SL) Armrest load

(AL) Horizontal force (F) Position of seat load (Z)

Table 6 — Rearward overbalancing – Chairs with backrest inclination

Chair size mark Number of discs

5.3.2 Seat and back static load (!EN 1728:2012, 6.4")

Table 7 — Seat and back static load of chairs

Chair size mark Cycles Seat load (SL) Back load (F)